A valve cylinder servicing device

Abstract

This utility model relates to the field of equipment maintenance technology and discloses a valve cylinder maintenance device. The device includes a carrier and a lifting platform mounted on the carrier. The lifting platform has multiple rotatable support wheels, with the axes of the support wheels parallel to the axis of the cylinder to be maintained. Every two support wheels form a pair of lifting parts, and these pairs are distributed along the axial direction of the cylinder, allowing the cylinder to rotate around its own axis when being lifted. The lifting platform also includes a limiting mechanism for locking the cylinder. This utility model, by using a lifting platform with rotatable support wheels, effectively lifts and supports the cylinder, allowing it to rotate freely around its own axis during maintenance, facilitating alignment of the piston end and improving assembly efficiency. The limiting mechanism reliably locks the cylinder after rotation and adjustment, preventing slippage and improving safety and stability during maintenance.

Description

Technical Field

[0001] This utility model relates to the field of equipment maintenance technology, specifically a valve and cylinder maintenance device. Background Technology

[0002] Valves, as common pipeline accessories, are widely used in pipeline systems to control the opening, closing, and flow direction of fluid media, as well as to regulate parameters such as temperature, pressure, and flow rate. In storage tanks or pipeline systems in industries such as chemical engineering, valves are typically driven by valve cylinders to achieve automated control.

[0003] When maintaining valve cylinders, especially when the cylinder body needs to be disassembled for offline repairs, the cylinder body is usually manually separated from the piston rod on the equipment and then reinstalled after the repair is completed. Due to the large size and heavy weight of the cylinder body, manual handling is not only difficult, but also makes it challenging to accurately align the connecting holes at the ends of the cylinder body and piston rod during reinstallation. This leads to low assembly efficiency and affects the equipment maintenance schedule, thus requiring a solution. Utility Model Content

[0004] To address the technical problems existing in the prior art, this utility model provides a valve cylinder maintenance device, which simplifies the disassembly and assembly of the valve cylinder body and improves the installation and alignment efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a valve cylinder repair device, including a carrier and a lifting platform mounted on the carrier; the lifting platform is provided with multiple rotatable support wheels, and the axis of the support wheels is parallel to the axis of the cylinder to be repaired; every two support wheels form a pair of lifting parts, and multiple pairs of lifting parts are distributed along the axial direction of the cylinder to be repaired, so that the cylinder to be repaired can rotate around its own axis when lifting the cylinder to be repaired; the lifting platform is also provided with a limiting mechanism for locking the cylinder to be repaired.

[0007] As a further improvement to the above solution, the lifting platform is provided with waist-shaped holes corresponding to the number of support wheels. The length direction of the waist-shaped holes is perpendicular to the axis of the cylinder to be inspected. The base of the support wheel is fixedly installed on the lifting platform by bolts passing through the waist-shaped holes and engaging with nuts, so that the spacing between each pair of lifting parts can be adjusted.

[0008] As a further improvement to the above solution, the limiting mechanism includes an elbow clamp fixedly installed on the lifting platform; the clamp head can press against the cylinder to be repaired in the locked state.

[0009] As a further improvement to the above solution, at least one pair of elbow clamps is provided, with each pair of elbow clamps symmetrically distributed on both sides of the cylinder body to be repaired; the chucks of each pair of elbow clamps are horizontally coaxial with each other in the locked state, and intersect with the axis of the cylinder body to be repaired.

[0010] As a further improvement to the above solution, the chuck surface of the elbow clamp is provided with an anti-slip layer.

[0011] As a further improvement to the above solution, the limiting mechanism includes a gantry frame, a screw, a guide rod, and a clamping plate; the gantry frame is arched and erected on a lifting platform; a handwheel is fixedly connected to the top of the screw, the threaded section of the screw engages with a screw hole on the gantry frame, and the bottom end of the screw is rotatably mounted on the clamping plate; the top of the guide rod is slidably mounted in a guide hole on the gantry frame, and the bottom end of the guide rod is fixedly connected to the clamping plate; the bottom contour of the clamping plate is adapted to the outer surface contour of the cylinder to be repaired, and the bottom of the clamping plate is made to fit tightly against the cylinder to be repaired by rotating the screw.

[0012] As a further improvement to the above solution, the limiting mechanism also includes two first slide rails fixedly connected to the lifting platform; the first slide rails are parallel to the axis of the cylinder to be inspected; the two bottoms of the gantry are respectively fixedly connected to the sliders of the two first slide rails.

[0013] As a further improvement to the above solution, the maintenance device also includes a drive assembly, which includes a scissor lift mechanism, a second slide rail, a third slide rail, and a power source; the second slide rail is fixedly connected to the bottom of the lifting platform, and the third slide rail is fixedly connected to the top of the vehicle; the scissor lift mechanism includes two sets of cross-hinged cantilever units; one end of each set of cantilever units is respectively hinged to the lifting platform and the vehicle, and the other end is respectively hinged to the sliders of the second and third slide rails; the power source is used to drive the sliders on the second or third slide rail to perform linear motion, so as to drive the lifting platform to perform lifting motion.

[0014] As a further improvement to the above solution, the vehicle is equipped with swivel casters and feet.

[0015] As a further improvement to the above solution, a handle is also provided on one side of the top of the vehicle.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model provides a valve cylinder maintenance device with the advantages of reasonable structure and convenient operation. By setting up a lifting platform with rotatable support wheels, the cylinder body is effectively lifted and supported, allowing it to rotate freely around its own axis during maintenance. This facilitates alignment of the connection holes with the piston end, improving assembly efficiency. The set limiting mechanism can reliably lock the cylinder body after rotation and adjustment, preventing slippage and improving safety and stability during maintenance.

[0018] 2. The support wheel of this maintenance device is adjustable in position, which can be adapted to cylinders of different sizes, thus enhancing the versatility of the device.

[0019] 3. The limiting mechanism of this maintenance device can adopt an elbow clamp structure or a gantry structure. The elbow clamp structure is convenient to use and can quickly clamp the cylinder radially. With the anti-slip layer, it can prevent the cylinder from rotating. The gantry-type limiting structure, combined with the screw, guide rod and clamping plate, can more stably fit the outer wall of the cylinder, further improving the limiting accuracy. With the movable structure of the slide rail, it can adapt to the clamping requirements of cylinders of different lengths.

[0020] 4. The lifting platform of this maintenance device is driven by a scissor lift mechanism, which is flexible in adjustment and runs smoothly, adapting to different height requirements. The bottom of the vehicle is equipped with swivel casters and feet, allowing for quick switching between moving and stationary modes, facilitating positioning and improving on-site operational stability. Combined with the handle design, this further enhances the practicality and convenience of the device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the valve cylinder maintenance device in Embodiment 1 of this utility model.

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0023] Figure 3 for Figure 1 The front view of the valve cylinder maintenance device when lifting the cylinder to be maintained.

[0024] Figure 4 for Figure 3 A side view of the valve cylinder maintenance device in the image, showing the cylinder to be maintained being lifted.

[0025] Figure 5 This is a three-dimensional structural diagram of the valve cylinder maintenance device in Embodiment 2 of this utility model.

[0026] In the diagram: 1. Carrier; 2. Lifting platform; 21. Waist-shaped hole; 22. Bolt; 23. Nut; 3. Support wheel; 4. Cylinder to be inspected; 5. Limiting mechanism; 51. Elbow clamp; 511. Chuck; 512. Gantry frame; 513. Screw; 514. Guide rod; 515. Clamping plate; 516. First slide rail; 6. Drive assembly; 61. Scissor fork deformation mechanism; 610. Cantilever unit; 62. Second slide rail; 63. Third slide rail; 64. Power source; 7. Universal caster; 8. Foot cup; 9. Handle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Please see Figure 1 This embodiment provides a valve cylinder maintenance device, including a carrier 1, a lifting platform 2, and may also include a drive component 6 for driving the lifting platform 2 to rise and fall.

[0030] The carrier 1 serves as the support for the entire device, and its bottom can be equipped with four swivel casters 7 and four foot cups 8. The carrier 1 can be box-shaped, welded from several alloy profiles, and can house a battery to power the drive assembly 6. The swivel casters 7 provide mobility for the carrier 1, and a handle 9 can be installed on one side of the top of the carrier 1 to facilitate moving the device to the maintenance site. The foot cups 8 provide stable support, and their height can be adjusted by rotating the threads, ensuring high stability during maintenance and preventing interference from uneven ground or human pushing.

[0031] The lifting platform 2 is a rectangular plate-shaped structure mounted on the carrier 1 and raised or lowered via a drive mechanism 6. The lifting platform 2 is equipped with multiple rotatable support wheels 3, with the axes of the support wheels 3 parallel to the axis of the cylinder body 4 to be inspected. Each pair of support wheels 3 forms a lifting section, and these multiple pairs of lifting sections are distributed along the axial direction of the cylinder body 4 to be inspected, allowing the cylinder body to rotate around its own axis when being lifted. The lifting platform 2 is also equipped with a limiting mechanism 5 for locking the cylinder body 4 to be inspected.

[0032] This utility model employs a combination of a lifting platform 2 and symmetrical rotatable support wheels 3 to support the cylinder body, with a limiting mechanism 5 for fixation. On one hand, after the cylinder body is disassembled, it provides efficient support and allows for rotation around its axis, facilitating personnel to rotate and adjust the cylinder body on the device and troubleshoot any faults. On the other hand, if cylinder stability is required during maintenance, the limiting mechanism 5 can lock the cylinder body to prevent slippage or rotation. This maintenance device reduces the labor intensity of manually handling the cylinder body, improves the efficiency of aligning the cylinder body and piston rod during installation, and enhances maintenance safety and ease of operation.

[0033] In this embodiment, there are two pairs of support wheels 3, and other numbers can be set according to the size of the cylinder body. Correspondingly, four waist-shaped holes 21 can be opened on the lifting platform 2. The length direction of the waist-shaped holes 21 is perpendicular to the axis of the cylinder body 4 to be inspected. The base of each support wheel 3 can be fixedly installed on the lifting platform 2 by bolts 22 passing through the waist-shaped holes 21 and cooperating with nuts 23. In this way, the distance between the two rows of support wheels 3 (lifting points) can be adjusted by loosening the bolts 22 and moving the base of the support wheel 3 along the extension direction of the waist-shaped holes 21, thereby adapting to cylinder bodies of different diameters or structural sizes and enhancing the versatility and adaptability of the device.

[0034] Furthermore, for cylinders with a uniform diameter, adjusting the spacing of one or more pairs of lifting parts can change the contact point between the cylinder and the lifting part, thereby adjusting the pitch angle of the cylinder (axis) to address uneven ground or uneven piston rods. In some embodiments, the aforementioned bolt and nut structure can be eliminated. Instead, a support wheel 3 base structure can be designed so that its bottom extends from the waist-shaped hole 21 to below the lifting platform 2. A rotatable bidirectional screw and handwheel are then installed below the lifting platform 2. The two support wheel 3 bases of each pair of lifting parts are respectively engaged with the two threads of the bidirectional screw. By rotating the handwheel, the spacing between the two support wheels 3 can be quickly adjusted, and the threads have self-locking properties to ensure stability when lifting the cylinder.

[0035] In this embodiment, the limiting mechanism 5 includes an elbow clamp 51 fixedly installed on the lifting platform 2; the clamp head 511 of the elbow clamp 51 can press against the cylinder body 4 to be repaired in the locked state. The elbow clamp 51 can be provided in pairs (or more than two pairs), with each pair of elbow clamps 51 symmetrically distributed on both sides of the cylinder body 4 to be repaired; the clamp heads 511 of each pair of elbow clamps 51 are horizontally coaxial with each other in the locked state and intersect with the axis of the cylinder body (4) to be repaired. The clamp heads 511 of the elbow clamp 51 can apply radial clamping force to the cylinder body, stably locking it, thereby achieving reliable positioning of the cylinder body after rotation adjustment, and preventing the cylinder body from sliding or rotating due to its own weight during the repair process. The surface of the clamp head 511 of the elbow clamp 51 can be provided with an anti-slip layer, such as anti-slip rubber, to prevent slippage after clamping, improve clamping safety, and reduce the risk of cylinder body damage.

[0036] In addition, the elbow clamp 51 has the advantage of being quick and convenient to adjust. To use it, you only need to manually rotate the handle of the elbow clamp 51 to apply / unlock the state.

[0037] The drive assembly 6 includes a scissor lift mechanism 61, a second slide rail 62, a third slide rail 63, and a power source 64. The second slide rail 62 is fixedly connected to the bottom of the lifting platform 2, and the third slide rail 63 is fixedly connected to the top of the carrier 1. The scissor lift mechanism 61 includes two sets of cross-hinged cantilever units 610. One end of each cantilever unit 610 is hinged to the lifting platform 2 and the carrier 1, respectively, and the other end is hinged to the sliders of the second slide rail 62 and the third slide rail 63, respectively. The power source 64 is used to drive the sliders on the second slide rail 62 or the third slide rail 63 to perform linear motion, thereby driving the lifting platform 2 to perform lifting and lowering movements. In this embodiment, the power source 64 can be a linear motor. This drive assembly 6 controls the height increase and decrease through the slide rails and the linear motor, realizing the vertical movement adjustment of the platform, adapting to different maintenance heights of the cylinder, ensuring the scissor lift structure is stable and reliable, and providing smooth lifting and lowering, thus reducing the risk of human error.

[0038] Example 2

[0039] This embodiment provides a valve cylinder maintenance device, which differs from Embodiment 1 in that the limiting mechanism 5 is used.

[0040] In this embodiment, the limiting mechanism 5 includes a gantry frame 512, a screw 513, a guide rod 514, and a clamping plate 515. The gantry frame 512 is arched and mounted on the lifting platform 2. A handwheel is fixedly connected to the top end of the screw 513, and the threaded section of the screw 513 engages with the screw hole on the gantry frame 512. The bottom end of the screw 513 is rotatably mounted on the clamping plate 515. The top end of the guide rod 514 is slidably mounted in the guide hole on the gantry frame 512, and the bottom end of the guide rod 514 is fixedly connected to the clamping plate 515. The bottom contour of the clamping plate 515 is adapted to the outer surface contour of the cylinder body 4 to be inspected. By rotating the screw 513, the bottom of the clamping plate 515 is made to fit tightly against the cylinder body 4 to be inspected.

[0041] In this embodiment, the clamping plate 515 is driven to move up and down by rotating the screw 513 to achieve clamping. The guide rod 514 constrains the trajectory of the clamping plate 515 to prevent shaking. This limiting mechanism 5 can be adapted to the limiting requirements of larger or heavier cylinders, and can accurately control the clamping position, improving the limiting accuracy.

[0042] Furthermore, the limiting mechanism 5 may also include two first slide rails 516 fixedly connected to the lifting platform 2; the first slide rails 516 are parallel to the axis of the cylinder body 4 to be inspected; the two bottoms of the gantry frame 512 are respectively fixedly connected to the sliders of the two first slide rails 516.

[0043] The gantry 512 can be moved along the first slide rail 516 and its position is adjustable, so as to flexibly adjust the position of the clamping point according to the length of the cylinder body, further improving the adaptability to various models of cylinder bodies.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A valve cylinder maintenance device, characterized in that, It includes a carrier (1) and a lifting platform (2) mounted on the carrier (1); the lifting platform (2) is provided with multiple rotatable support wheels (3), and the axis of the support wheels (3) is parallel to the axis of the cylinder body (4) to be inspected; every two support wheels (3) form a pair of lifting parts, and multiple pairs of lifting parts are distributed along the axis of the cylinder body (4) to be inspected, so that the cylinder body (4) to be inspected can rotate around its own axis when lifting the cylinder body (4); the lifting platform (2) is also provided with a limiting mechanism (5) for locking the cylinder body (4) to be inspected.

2. The valve cylinder maintenance device according to claim 1, characterized in that, The lifting platform (2) has a waist-shaped hole (21) corresponding to the number of support wheels (3). The length direction of the waist-shaped hole (21) is perpendicular to the axis of the cylinder body (4) to be inspected. The base of the support wheel (3) is fixedly installed on the lifting platform (2) by bolts (22) passing through the waist-shaped hole (21) and cooperating with nuts (23), so that the spacing of each pair of lifting parts can be adjusted.

3. The valve cylinder maintenance device according to claim 1, characterized in that, The limiting mechanism (5) includes an elbow clamp (51) fixedly installed on the lifting platform (2); the clamp (511) of the elbow clamp (51) can press against the cylinder body (4) to be repaired in the locked state.

4. A valve cylinder maintenance device according to claim 3, characterized in that, At least one pair of elbow clamps (51) are provided, and each pair of elbow clamps (51) is symmetrically distributed on both sides of the cylinder body (4) to be inspected; the chucks (511) of each pair of elbow clamps (51) are horizontally coaxial with each other in the locked state, and intersect with the axis of the cylinder body (4) to be inspected.

5. A valve cylinder maintenance device according to claim 3 or 4, characterized in that, The elbow clamp (51) has an anti-slip layer on its clamp head (511) surface.

6. A valve cylinder maintenance device according to any one of claims 1 to 4, characterized in that, The limiting mechanism (5) includes a gantry (512), a screw (513), a guide rod (514), and a clamping plate (515). The gantry (512) is arched and is mounted on the lifting platform (2). A handwheel is fixedly connected to the top of the screw (513), and the threaded section of the screw (513) is engaged with the screw hole on the gantry (512). The bottom end of the screw (513) is rotatably mounted on the clamping plate (515). The top end of the guide rod (514) is slidably mounted in the guide hole on the gantry (512), and the bottom end of the guide rod (514) is fixedly connected to the clamping plate (515). The bottom contour of the clamping plate (515) is adapted to the outer surface contour of the cylinder body (4) to be repaired. By rotating the screw (513), the bottom of the clamping plate (515) is made to fit tightly against the cylinder body (4) to be repaired.

7. A valve cylinder maintenance device according to claim 6, characterized in that, The limiting mechanism (5) also includes two first slide rails (516) fixedly connected to the lifting platform (2); the first slide rails (516) are parallel to the axis of the cylinder body (4) to be inspected; the two bottoms of the gantry frame (512) are fixedly connected to the sliders of the two first slide rails (516).

8. A valve cylinder maintenance device according to any one of claims 1 to 4, characterized in that, It also includes a drive assembly (6), which includes a scissor-transformation mechanism (61), a second slide rail (62), a third slide rail (63), and a power source (64); the second slide rail (62) is fixedly connected to the bottom of the lifting platform (2), and the third slide rail (63) is fixedly connected to the top of the vehicle (1); the scissor-transformation mechanism (61) includes two sets of cross-hinged cantilever units (610); one end of each of the two sets of cantilever units (610) is respectively hinged to the lifting platform (2) and the vehicle (1), and the other end is respectively hinged to the sliders of the second slide rail (62) and the third slide rail (63); the power source (64) is used to drive the sliders on the second slide rail (62) or the third slide rail (63) to make linear motion, so as to drive the lifting platform (2) to make lifting motion.

9. A valve cylinder maintenance device according to any one of claims 1 to 4, characterized in that, The bottom of the vehicle (1) is equipped with swivel casters (7) and foot cups (8).

10. A valve cylinder maintenance device according to claim 9, characterized in that, A handle (9) is also provided on one side of the top of the vehicle (1).

Images